Embraer EMB145 - Page 205

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NORMAL PROCEDURES

AIRPLANE

OPERATIONS

MANUAL

1-02-17

Page

Code

REVISION 37

AOM-145/1114

- Select HOT MIC on the control wheel communication switch;

- Actuate the test button on the mask stowage location. Check

that the blinker changes color; (*)

- The OXY ON flag must appear on the stowage box; (*)

- For EROS masks: While maintaining the RESET TEST lever

(TEST/SHUTOFF sliding control) depressed, check that the

blinker changes color momentarily, and then depress the

PRESS-TO-TEST regulator for 1 second; or

For Puritan Bennett or B/E Aerospace masks: Set the

regulator’s control knob to EMERGENCY and momentarily

actuate the test button on the mask stowage location;

- Check that the blinker changes color;

- The OXY ON flag must appear on the box; (*)

- The sound of oxygen flowing must be heard momentarily on

the speaker, thereby assuring the microphone electrical

integrity;

- Set the mask to 100%; (*)

- After finishing the test, select the BOOM position on the

Audio Panel.

(*) Applicable only to Puritan Bennett or B/E Aerospace masks.

If there is an observer on the jump seat, check the observer oxygen

mask as follows:

- Select the MASK position on the observer Audio Panel;

- Set the mask to 100%;

- Select SPKR on the Audio Panel and set the volume to mid-

range;

- Select HOT MIC on the control wheel communication switch;

- For EROS masks: Depress the PRESS-TO-TEST regulator

for 1 second; or

For Puritan Bennett or B/E Aerospace masks: Turn the

regulator knob to the EMERGENCY position momentarily

and then turn back the knob to 100% position;